Carriage-top-frame joint.



No. 789,521. PATENTED MAY 9, 1905 W. J. BAKER.

CARRIAGE TOP FRAME JOINT.

APPLIOATION FILED D30. 5, 1904.

2 SHEETS-SHEET 1.

WWII/59858:

No. 789,521. PATENTED MAY 9, 1905.

W. J. BAKER.

CARRIAGE TOP FRAME JOINT.

APPLICATION FILED DEC 5, 1994.

2 SHEETS-SHEET 2.

I WITNESSES: llvmglvrol? 4 g [WK/2am uBa/zw.

Patented May 9, 1905.

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\VILLIAM J. BAKER, 0F NEW PORT, KENTUCKY.

CARRIAGE-TOP FHAIWE \JOlNT.

SPECIFICATION forming part of Letters Patent No. 789,521, dated May 9, 1905.

Application filed December 5, 1904. Serial lilo1 235,586.

To It whom it may concern/.-

Be it known that I, WVILLIAM J. BAKER, residing at Newport, in the county of Campbell and State of Kentucky, have invented a new and Improved CarriageJPop-Frame Joint, of which the following is a specification.

This invention relates generally to metallic foldable frame-joints, and seeks to provide a new and improved top-frame member composed of foldable sections formed, in the preferred construction, entirely of sheet metal and having a special cooperative arrangen'lent of joint end whereby a simple, economical, and easily-assembled sectional frame member is provided capable of withstanding consider able wear and strain and not adapted to be broken or snapped under ordinary uses, as is frequently incident in the use of malleable or cast frame members.

in its generic nature my invention comprehends a metallic frame member formed entirely of sheet metal bent to shape and hingejoint connections for attaching the said frame member with another like constructed section, the said joint and ends being also formed entirely of sheet-metal members bent to the desired shape.

In its more subordinate features my invention consists in a top-frame composed of sheetmetal members bent up to the desired shape out of a single piece of sheet metal or of a number of sheet-metal pieces and a means for hingedly connecting the several frame-sections, which sections are also formed of sheet metal, all of which parts embody a peculiar construction and detailed cooperative arrangement hereinafter described in detail, pointed out in the appended claims, and illustrated in the accompanying drawings, in which- Figure l is a perspective view of a carriagetop frame constructed in accordance with my invention. Fig. 9. is a side elevation of one of the hinged frame members. Fig. 3 is a crosssection of the same on the line 3 3 of Fig. 2. Fig. 4 is a longitudinal section thereof on the line at 41 of Fig. 3. Fig. 5 is a perspective view which illustrates the two sections of the frame member and the two supplemental or hinged bent sections separated from one another.

Figs. 6 and 7 are plan views of the single piece blanks from which the two frame-member sections are bent up. Fig. 8 is a plan view of one of the blanks from which the supplemental or hinged sections are bent up. Fig. 9 is a detail view showing a modified construction of the frame-sections as hereinafter referred to. Fig. 10 is a cross-scction similar to that shown in Fig. 3, but showing the modified construction disclosed in Fig. 9. Fig. 11 illustrates a slightly-modified arrangement of the pivot or screw receiving end of the framemember sections. Fig. 12 is a cross-section of one of the screw or pivot receiuing ends, illustrating a further modification hereinafter referred to. Fig. 13 is a crosssection on the line 13 13 of Fig. 14. Fig. 14 is a side view of the end of the rod, showing a further modification of my invention.

In carrying out my invention and in the preferred application thereof I form the frame member or top-prop of two sections,as is usual, and make the said sections each from a single piece of sheet metal, one of which, A,has the shape of the blank shown in Fig. 6, and the other, A, has the shape of the blank shown in Fig. 7. Each of the blanks shown is bent up into tubular shape, approximately rectangular in cross-section, (see Fig. 3,) and the outer ends thereof are apertured, as at a a, to receive the pintle or screw pivots Z) 7), as shown, and to strengthen the said outer ends of the sections A A the apertures a a are pressed with a reinforced and countersunk flange, as shown in Fig. 11, or they may be made with a reinforced countersunk flange and an eyelet a' as shown in Fig. 12, said eyelet serving to firmly join the opposing apertured portions of the said outer ends.

Each inner or hinged end of the section A has a pair of apertured cars a a and the usual shoulder or stop portion 11; a, and the inner end of the section a has the stop portion a and a pair of oppositely-disposed lugs (1 which are suflicien tly pressed together, so that they will readily lit in between the apertured ears of the sections A, and the said lugs (17 (.0 also have concaved recesses a 0!, whereby to fit upon the hinge or pivot bolt 0, that passes through the ears (4 a and also through the supplemental hinged joint members (Z (Z. The peculiar construction and their cooperative connection with the adjacent ends of the sections A A forms the essential feature of this invention. The supplemental joints (Z (Z are each bent up to shape from a blank form, such as is shown in Fig. 8, and each of the said blanks when bent up to shape has a lockingshoulder (Z and apertured ears (Z which are so arranged to register with the apertured ears and shoulders on the hinged end of the member A, and the said two members (I d have their apertured ear ends so bent that they telescopically join, as clearly shown in Figs. 3 and 4:.

By providing the supplemental joint members and combining them with the adjacent ends of the sectionsAA a substantially solid hinge is formed, since the several ears of the members (Z (Z fill out the space between the ears 0 (1 of the member A and the lugs a a of the member A, as best shown in Fig. 3, and as the U-shaped portions of the members (Z d extend some distance into the tubular portions of the members a a from the hinge or pivot joints they materially strengthen or reinforce the hinge ends of the members A A, and thus overcome the danger of breaking or bulging the hinged joint of the top-prop member under the ordinary uses.

WVhile I prefer to make the sections A A of a single piece of metal, the same may be made of two pieces, as shown in Fig. 9, each of which is formed of a U shape in cross-section, and one of which (designated (f) is adapted to receive the other joint and has at the hinged end the apertured ears or lugs and has extensions 0/ (4* at the outer and inner ends to clip over the inner U-shaped portion a, that tits into the member a, as shown. Figs. 13 and 14 show further modifications of myinvention, showing a slight modification of the hinge end of the rod, (0 designating a tubular member passed through the aperture (0 of the end of the rod and upset to form a distancepiece to prevent the attaching-screw from binding against the rod.

From the foregoing description, taken in connection with the accompanying drawings, the many advantages and complete construction of my invention will be readily apparent to those skilled in the art to which it appertains.

Frame members of the character described have, so far as I know, been heretofore made either of solid metal or of a solid metal body with hollow stump-joint; but my invention ditierentiates from such forms of carriage-top joints in the making of the entire prop and joint of sheet metal and in the peculiar manner in which the joint portions are made and connected in with one another, as will be hereinafter fully described in the claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, isv 1. A carriage-top prop and joint comprising two sections each section consisting of a tubular body formed of a single piece of sheet metal, each section-bod y having a pair of flattened hinge-joint end members, supplemental tubular joint members held within the joining ends of said sections, and means for joining said hinge end members to form a stop-hinge, substantially as shown and described.

2. A carriage-top-prop member formed of two sections, each consisting of a tubular body composed wholly of a single piece of sheet metal, the adjacent ends of the two sections being flatten ed to form ears, the ears of onebeing arranged to work inside the ears of the other, supplemental tubular joint members held within the adjacent ends of the two sections, and a means for pivotally connecting the ears of the two sections together as set forth.

3. A carriage-top prop consisting of two hinged sections, each section being stamped from a single sheet of metal, one of the said sections having at one end'apertured ears, the other section having flattened lugs adapted to lit between the ears upon the opposing member, and supplemental tubular sheet-metal joint members loosely fitted within each of the prop sections, said supplemental joint members being stamped up from a single sheet of metal and having ears, the ears in the said supplemental members being arranged to telescopically engage one another and to fit between the ears and lugs on the prop-sections, the several aforesaid-mentioned ears being apertured, and the pivot-bolt fitting the said apertures to form the hinge-pivot as set forth.

4:. A carriage-top prop consisting of two hinge-sections each being stamped from a single piece of sheet metal, one of said sections having a pair of apertured ears at one end, the other section having flattened lugs adapted to lit between the ears of the opposing section, and a pair of supplemental tubular sheetmetal joint members loosely fitted within the propsection, said supplemental joint members each being stamped from a single piece of sheet metal and each having a pair of apertu red ears, the ears of the supplemental sections being arranged to telescopically engage one another and to fit between the ears and lugs of the prop-section, and a pivot-bolt passing through said ears to form a hinge-pivot substantially as shown and described.

5. In a carriage-top prop the tubular sections A A each composed of a single piece of sheet metal and having joint members formed with ears, the ears of one working inside of the ears of the other, and separate joint members each composed of a single piece of sheet metal bent into a substantial U shape in crosssection and telescopically titted within the prop-sections, each of the supplemental joint members having apertured ears arranged to fit within the spaces of the ears on the adjacent ends of the prop-sections, and a pivot that passes through all of the said ears for the purposes specified.

6. A carriage-top prop, consisting of two prop sections each consisting of a single piece of sheet metal bent into a tubular form and each provided with apertures at one end and a pair of flattened ears at the other end, a supplemental joint member composed of a single piece of sheet metal bent into a substantial U shape and provided at one end with a pair of apertured ears, said supplemental member adapted to telescopically enter the joint end of one of said prop-sections, the ears of the other prop section adapted to fit between the ears of the first prop-section and the ears of the said supplemental section, all being arranged substantially as shown and described.

7. A carriage-top prop, consisting of two propsections, each consisting of a single piece of sheet metal bent into a tubular form and each provided with apertures at one end and a pair of flattened ears at the other end, a supplemental joint.member composed of a single piece of sheet metal bent into a substantial U shape and provided at one end with a pair of apertured ears, said supplemental member adapted to telescopically enter the joint end of said prop-sections, the ears of the other prop-section adapted to fit between the ears of the first section and the ears of the said supplemental section, and a second supplemental prop-section composed of a single piece of sheet metal bent into a substantial U shape in cross-section and provided with apertured cars at one end to enter between the apertured ears of the first-mentioned supplemental section, said supplemental section also adapted to telescopically enter the other tubular prop-section, and a pivot-bolt or rivet passing through all of said ears substantially as shown and described.

l/VILLIAM J. BAKER. Witnesses:

JOHN B. HARKER, L. M. BAKER. 

